The Houston Dynamo lead the Philadelphia Union 2-1 as the second half of this MLS Cup playoff game gets underway so it's no surprise they're standing pat with the players they used in the first half. They dominated play so there's no reason for them to make a change. The Union could most certainly use a change though, but for reasons unknown, Peter Nowak has opted not to make a substitution.
Exactly why Nowak has chosen not to make a sub is beyond me. He made a mistake starting the match in the center of midfield with Brian Carroll and Stefani Miglioranzi, two very defensive players. The Dynamo just overran them in the center because Philly had no threat there and they were dropping so deep that there was plenty of space. With Roger Torres, Amobi Okugo and Freddy Adu sitting on the bench, Nowak has the options to make a chance and inject some life in the team, but he's chosen not to. This doesn't look like a smart move by Nowak.